Author: avg
Date: Fri Sep 25 07:40:56 2020
New Revision: 366141
URL: https://svnweb.freebsd.org/changeset/base/366141
Log:
aw_pwm: ensure sane configuration, just in case
Make sure that the hardware is configured to cycle mode and that the
bypass is disabled.
MFC after: 2 weeks
Modified:
head/sys/arm/allwinner/aw_pwm.c
Modified: head/sys/arm/allwinner/aw_pwm.c
==============================================================================
--- head/sys/arm/allwinner/aw_pwm.c Fri Sep 25 07:40:26 2020
(r366140)
+++ head/sys/arm/allwinner/aw_pwm.c Fri Sep 25 07:40:56 2020
(r366141)
@@ -290,6 +290,13 @@ aw_pwm_channel_config(device_t dev, u_int channel, u_i
/* Write the prescalar */
reg &= ~AW_PWM_CTRL_PRESCALE_MASK;
reg |= prescaler;
+
+ reg &= ~AW_PWM_CTRL_MODE_MASK;
+ reg |= AW_PWM_CTRL_CYCLE_MODE;
+
+ reg &= ~AW_PWM_CTRL_PULSE_START;
+ reg &= ~AW_PWM_CTRL_CLK_BYPASS;
+
AW_PWM_WRITE(sc, AW_PWM_CTRL, reg);
/* Write the total/active cycles */
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